1. Research Center for Environmental
Protection and Waste Management, University of Bucharest, 90 Panduri Street, Bucharest, Romania, 050663
2. Department of Chemical Engineering, Polytechnic University of Bucharest, 1-5 Gh. Polizu
Street, Bucharest, Romania, 011061
3. National Institute of Materials Physics, 105 Atomistilor Street, Magurele,
Romania
4. Faculty of Chemistry, University of Bucharest, 4-12 Regina Elisabeta Avenue,
Bucharest, Romania, 070346